Hot metal car



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March 19, 1935. c; F, AS1-ROM HOT METAL CAR Filed Feb. 23, 1934 E Sheets-Sfxeet l lNvENToR T452 f? ASTRO/w ATTO R N EY March 19, 1935. C. P -ASTR'OM 1,995,166 HOT METAL CAR Filed Feb. 25,1954 2 sheets-sheet 2 /f 33"/ f4 f7 l, 2: l* l f2 ga INVENTQR LM PAW-Ran Patented' Mar. 19, 193s y 'o 1,995,166

1 UNITED STATES PATENT OFFICE:

'nor METAL om Carl P. Astrom, East Orange, N. J., assignor to M. H. Treadwell Company, Inc., New York, N. Y., a corporation of New York Application February 2a, 1934, serial No. 712,476

5 claims. (ci. 26e-.39)

This invention relates to hot metal conveying transmitted to the body even in going around` and dumping cars which are emptied by a tilting sharp and highly banked curves, and v(a lower movement induced by a crane or other external center of gravity'is obtained than in an `undermeans and has for its object to provide a simple frame type f horizontal hOt metal Car! r andeiicient mechanism for locking the car body In the preferred form of the invention, the car 5 l in upright and tilted positions. body has a plurality of spaced engaging lmembers Hot metal cars of the horizontal type referred which may be selectively engaged 'with the col to are used to transport molten metal from blast Operating locking mechanism 0n the end Supports. furnaces to open hearth furnaces, converters, or Laccording to the angular position `of the body.

casting pits which are at some distance from the Five such engaging members are preferred, one 10 furnace, or at a separate plant. The cars vary for locking the bOdyin the Upright 01 DOR-dumpr in size and capacity, some of them weighing up to ing DOSOII, WO OI kicking theA body ,in` the nter- 125 tons when empty and being capable of car- .mediate dumping positions on either side of the rying up to 175 tons of hot metal at a time. car, and two for draining positions. e'

Hot metal cars of this` type have heretofore The .body carries at each end elongated trunl15 beenl mounted on trunnions and dumped by a' nions withthrust means on each side, each trunmotor carried on the car. An object of this innion carrying a platform, and each platform` supvention is to dispense with the expense of a ported by a standard form of truck, so that draft motor and the necessary reductiongearing by and bufling strains? are transmitted between the tipping the body on center trunnionswith a crane i platforms by the body itself. n 20 or other external means.A A further object of the The invention Will'be described in Connection invention is to provide a locking mechanism, with the accompanying drawings, in which: preferablyconstructed for ldumping on either Fig. 1 iS a Sideelevton 0f Cal' embodying side of the track, for holding' the body upright the invention;

when empty, full or during transportation, -in f Fig. 2 is an end elevation with portions of the 25 tilted intermediate dumping position, and extrunnion, end frame and locking mechanism treme tilted draining position, independently of shown in section; the external operating means. Thus a traveling Fig. 3 is a transverse section taken on line 3--3 crane need not be tied up while a car is positioned of Fig. 1;

for draining, but may be used elsewhere. After Fig.. 4 is asection taken on line 4-4 of Fig. 30

a car has discharged the contained hot metal, 3; and

Vthere is a residue of slag and kish which has to Fig. 5 is a detail of the locking mechanism; be drained out after moving the car to a dump, The hot metal Vcar shown in the drawings has by further tilting it and holding it'tilted for acapacityof upwards of 150 tons and is provided some time. Heretofore, a practice has been to with trucks 1, 2 at each end, makingY four trucks 35 have men at the dump rake out' the slag and in all, although two trucksmay be used for cars kish while the car is held in dumping position. of smaller capacity, depending on' permissible Such practice is expensive, and is avoided by this wheel loads under I. C. C. and A, R. A. regulations'. invention in that the body can be completely in- End frames 3 are journaled on the respective '40 verted and locked to drain slag andkish between truck frames or holsters 4 as at 5 with standard 40 A has to be given on the side bearings to prevent amount of tilting of thev end frames on the trucks l the rails to a dump b elow, while the crane can king pins and hemispherical bearings providing be used elsewhere. universal pivots. The. end frames carry the usual A further object is to eliminate in a car of draft gears and couplers, not shown. At the sides, such type an underframe between the trucks, each end frame carries pad Shaving a slight which saves weight and cost, and also reduces clearance from bearing rollers l'l at each side of 45 dei-ailments heretofore common to underframe the truck frame, this being'of standard construccars, especially long ones. In the latter, in order tion and allowing the truck and car body to pivot to go round banked curves at all, more clearance independently of each other as well as a certain jamming and twisting of the frame, but increased in going around curves.

side bearing clearance makes for instability in Each end frarnef carries two trunnion pedtransportation. With the 'construction shown estais 8, 9., providing an elongated trunnion'supherein without an underframe, such difficulties port at each `end, eitherintegral with the end are overcome, and by locking only one end ofthe frame in one heavy casting or of built up concar body, no distorting or twisting moments are struction heavily braced thereto to resist draft 55 strains. By draft strains nary strains due to the locomotive, or opposite strains due to coupling, bumping, etc., or more generally, the ordinary end thrust transmitted through the trunnions.

Horizontal car body is meant either the ordiis of substantially cylindrical shape and has elongated end-trunnions Y the stresses from the couplers being transmitted to the trunnions through the truck bearings and thereby setting up the said bending moments.

The body 10 is interiorly lined with refractory material of the.type commonly used in hot metal containers and is provided with a filling and pour- 17 at any desired place, or may have a on each side. The body is also provided with lugs 18 for the attachment of a dumping crane hook whereby the body may be tilted on its trunnions and the contents dumped on either side of the car as desired.

One of the trunnions 12 carries a ring 20 which is either integral with the trunnion or keyed thereto in any suitable manner. This ring has one or more peripheral lugs or projections, there being five such lugs numbered 21 to 25 in the form shown` in the drawings. The cooperating locking mechanism includes a rotatable shaft 27 which is journaled in pillow blocks 28 carried by the end frame 3 adjacent trunnion ring 20, the shaft having suitable collars disposed within the pillow blocks and other collars on opposite sides of said blocks for taking up thrusts. The respective end .portions of shaft 27 are threaded in'opposite directions and blocks 29 are threaded on the respective end portions of shaft 27 and are seated in a track or slot 30 which extends transversely of end frame 3 coextensive with shaft 27 as shown in Figs. 2, 3 and 4. Hand wheels 31 are secured to both ends of shaft 27 forrotating said shaft from either side of the car.

Rotation of shaft 27 in one direction causes blocks 29 to slide toward each other in track 30,

ing spout separate spout while rotation of the shaft in the opposite direction causes the blocks to move apart. When the blocks are spread apart the maximum distance, as in Fig. 3, they are outside the path of lugs 21, 22, etc. on trunnion ring 20, permitting the lugs to clear the blocks when the body is tilted by the crane. In Fig. 2 the blocks 29 are clamped against lug 21 thereby locking the car body in upright position. The body is made bottom heavy when empty or full, so as not to accidentally tilt. When it is desired to tilt the body, the dumping crane hook 33 is engaged with the lug 18 on the side opposite that on which the body is to be dumped; shaft 27 is rotated by either hand wheel 31 until blocks 29 are spread apartthe maximum distance as shown in Fig. 3; the crane is operated to tilt the body, for example to the first dotted line position shown in Fig. 2, thereby rotating ring 20 until lug 25 clears the adjacent block 29 as illustrated in Fig. 3 and arrives in the central position formerly occupied by lug 21; whereupon shaft 27 is rotated in the opposite direction to clamp lug 25 between blocks 29 thereby locking the -body in The trunnions 12 are supported an intermediate dumping position and allowing the hot metal to drain off.

After car body 10 has discharged the contained hot metal, the car is moved to a dump and the body is further tilted in a clockwise direction as viewed in Figs. 2 and 3 and is locked in the extreme dotted tilted position in Fig. 2 by clamping lug 24 between blocks 29. In this position the body l0 is inverted almost 180 degrees from the upright position, allowing the slag and kish to drain betweenthe rails to a dump below while the crane is withdrawn and used elsewhere. The car body may likewise be tilted in the opposite direction, in which case lug 22 serves for locking the body in the intermediate dumping position and lug 23 for locking the body in position to drain the slag and kish.

Shaft, 27 preferably carries ratchets 34 at its opposite ends for engagement with pawls 35 on end frame 3, as shown in Figs. 2, 3 and 5, for positively locking the shaft to prevent it from turning under load.

By this invention a large capacity, low cost, low center of gravity, safe and economical horizontal type car is provided which will give much better operating results than the open top upright types in common use.

Various changes maybe made in the foregoing details of construction without departing from the scope and spirit of the invention as defined in the appended claims.

The invention claimed is:

1. A hot metal conveying and dumping car comprising end supporting means, bearings carried thereby, an outside operated car body having a pouring spout, a center trunnion at each end journaled in said bearings for rotatably supporting said body, an engaging member carried by said body, a slidable block on one support adapted to engage said member, and means for sliding said block into and out of engagement with said member to lock and unlock said body in tilted position.

2. A hot metal conveying and dumping car comprising end supporting means, bearings carried thereby, a car body having a pouring spout, a center trunnion at each end journaled in said bearings for rotatably supporting said body, a plurality of spaced peripheral lugs carried by said body, a block movable transversely on said support adapted to selectively engage said lugs according to the angular position of said body, and means for moving said block into and out of engagement with said lugs to lock and unlock said body.

3. A hot metal conveying and dumping car com- 'and draft transmitting means, a plurality of spaced peripheral lugs carried by said body, cooperating clamping means movable transversely on one support adapted to selectively lock said lugs according to the angular position of said body, and means for clamping and releasing said lugs, said body having means to cooperate with outside dumping means.

4. A hot metal conveying and dumping car comprising a support, bearings carried thereby, a car body having a pouring spout and trunnions journaled in said bearings for supporting and tilting said body, a rotatable shaft on said support having its respective end portions threaded in opposite directions, a track on said support adjacent said shaft, a pair of blocks on said track threaded on the respective end portions of said shaft and adapted to be moved toward and away from each ing its respective end portions threaded in opposite directions, a track on said support adjacent said shaft, a pair of blocks on said track threaded on the respective end portions of said shaft and adapted to be moved toward and away from eachv other according to the direction of rotation of said shaft, a lug carried by said body and movable into the path of said blocks upon tilting said body into pouring position, means for rotating said shaft to move and clamp said blocks against said lug, and

means for locking said shaft against rotation under load.

CARL P. ASTROM. 

